|Publication number||US7222463 B2|
|Application number||US 10/712,592|
|Publication date||May 29, 2007|
|Filing date||Nov 13, 2003|
|Priority date||Feb 16, 2000|
|Also published as||US20040093812|
|Publication number||10712592, 712592, US 7222463 B2, US 7222463B2, US-B2-7222463, US7222463 B2, US7222463B2|
|Inventors||Martin J. Rotter|
|Original Assignee||Rotter Martin J|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (17), Referenced by (8), Classifications (10), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application is a continuation-in-part of U.S. application Ser. No. 10/101,643 filed Mar. 20, 2002, now U.S. Pat. No. 6,662,510 which is a continuation-in-part of Ser. No. 09/785,077 filed Feb. 16, 2001, now U.S. Pat. No. 6,418,678 which claims the benefit of U.S. Provisional Application No. 60/182,959, filed Feb. 16, 2000.
It is known to ventilate the roof structure of a building utilizing a ridge vent. Such vents are created by an open slot running along the roof ridge, which causes ventilation out of the attic by convection air flow and by suction from wind blowing across the roof. A strip of air permeable material is installed over the ridge slot which prevents the ingress of moisture and debris, but allows air flow for ventilation. A ridge cap is then installed over the air permeable strip.
For roofs having contoured shapes, such as roofs having an outer surface formed by a roofing panel having a plurality of stiffening ribs and standing seams, it is known to use a ventilation strip having a surface which includes a plurality of recesses shaped to match the ribs or standing seams of the roof panel. The strip has an air-permeable portion in order to allow airflow. A ridge cap is then installed over the air-permeable strip. Such a system is described in U.S. Pat. No. 5,561,953, which was invented by the present inventor.
A problem has been identified, however, which arises during the installation of a ridge cap over the ventilation strips. The problem is based upon crushing of the air permeable strip in the fastener connection area and/or dimpling or pull through of the fastener due to overdriving. The problem does not exist for some styles of roofs in which fasteners can be installed on or near stiffening ribs. However, when fastening occurs away from a stiffening rib, through the ridge cap, the ventilation strip and into the decking, the ventilation strip can be locally crushed during fastener installation, resulting in an uneven or damaged ridge cap. This problem is further evidenced in roof vent material having greater thicknesses, such as two or more inches, which is starting to see use in profiled ridge vent applications for metal and/or composition roofs. This can lead to a further problem of creating an entry point for moisture through the ridge cap and into the sheathing and internal roof support structure.
The present invention is generally directed to a system for installing a ridge vent on a contoured roof in which a strip having an air-permeable portion is provided with a surface shape to match the projections of the contoured roof surface. Stand-off clips are provided which can be placed over the contoured, air-permeable strip at fastener locations which are located on flat portions of the roof panels.
In another aspect of the invention, a ridge vent system utilizing contoured air-permeable strips is provided. Stand-off clips are used at fastener locations on flat portions of the roofing panels. A sealing material is placed at fastener locations that penetrate the roofing panels to prevent the ingress of moisture beneath the panels.
The foregoing Summary, as well as the following detailed description of the preferred embodiments of the invention will be better understood when read in conjunction with the appended drawings. For the purposes of illustrating the invention, there are shown in the drawings embodiments which are currently preferred. It should be understood, however, that the invention is not limited to the precise arrangements shown.
Certain terminology is used in the following description for convenience only and is not considered limiting. The words “right,” “left,” “lower,” and “upper” designate directions in the drawings to which reference is made. This terminology includes the words specifically noted above, derivatives thereof and words of similar import. Additionally, the terms “a” and “one” are defined as including one or more of any referenced item unless specifically noted.
Referring now to
The upper row of decking 14 terminates approximately ¾ to 1 inch short of the crest of the roof ridge thereby defining a vent slot 26. The vent slot 26 may also be created during construction of the roof or may be retrofitted using a circular saw to cut a slot in the decking 14.
A strip 30, having an air permeable portion to allow ventilation, is preferably shaped on its lower surface 44 to match the contours of the roof panes 18. Preferably, one strip 30 is provided on either side of the vent slot 26. The ridge cap 24 is secured to the decking 14 over the strips 30 using a series of fasteners 36. As shown in
As shown in detail in
Because the stand-off clips 52 are typically utilized in the flat field area of the contoured roof panels 18, preferably a sealing material 56 is provided at each stand-off clip location. The sealing material 56 may be a strip of butyl rubber, having an adhesive located on one side, or any other suitable sealing material compatible with the particular contoured roof panels 18. The sealing material 56 may be provided in pre-cut pieces or partially perforated strips which can be separated from a sheet of release paper, and placed in position under the strip 30 at each fastener location which does not correspond to a sufficiently large stiffening rib 20 to prevent over-driving of the fastener 36.
While the strip 30 must have at least a portion that is air-permeable to allow the passage of air to ventilate the roof, preferably the entire strip 30 is an air-permeable material 32. Although other air-permeable-materials could be used, the preferred air permeable material 32 is a strip of non-woven synthetic fiber matting, as described in the inventor's prior U.S. Pat. No. 5,167,579, which is incorporated herein by reference as if fully set forth.
While the stand-off clips 52 are only located in the areas on the contoured roof panels 18 which do not include a large stiffening rib 28 or standing seam 40, as shown in the alternate embodiment of the roofing system in
The strip 30 completely fills the space between the contoured roof panel 18 and the ridge cap 24, with the ridge cap 24 engaging the planer upper surfaces 46 of the strip 30. The lower surface 44 of the strip 30 matches the contour of the roof panels 18. Those skilled in the art will recognize from the present disclosure that different contours in the strip 30 will be required and that the thickness of the strip 30 may vary, depending upon the height of the ribs 20 and standing seams 40.
In order to install the ridge vent in accordance with the present invention, after the contoured roof panels 18 have been installed on the decking 14, the strips 30 are placed along each side of the open slot 26 running along the ridge. The stand off clips 52 are placed at the desired spacing over the strip 30 at the fastener locations for the ridge cap 24 which do not fall on standing seams 40 or stiffening ribs 28 which can receive a fastener 36 for holding the ridge cap 24 in position. Preferably, the sealing material 56 is placed on the surface of the contoured roof panel 18 under each stand-off clip 52. The ridge cap pieces 34 are then placed in position over the stand-off clips 52 and the strips 30. The fasteners 36 are then driven through the ridge cap 24, the stand off clips 52, the strip 30, the contoured roof panels 18 and into the decking 14 at the desired locations along the ridge cap 24 to hold the ridge cap 24 in position. The fasteners 36 may also be driven through the ridge cap 24, the strip 30 and standing seams 40 or ribs 28 of sufficient size.
Referring now to
In order to install the roof cap 124 over the air permeable and resilient strip 130, the stand-off clips 152 are first installed. The roof cap 124 is then placed in position and screws 136 are installed through the roof cap 124 and into the upper surface of the stand-off clips 152. This has the advantage of using shorter length screws, especially when the roof vent material 130 is thick.
As shown in
Alternatively, the screws 162 can be omitted, and screws 136 may be utilized which are long enough to be driven through the roof cap 124, the stand-off clips 152, the vent material 130, and into the roof panel 118 and decking 114.
Referring now to
Referring now to
Referring now to
The stand-off clips may be made of various materials, such as stainless steel or galvanized metal and may be bent-up into the desired shape. Alternatively, the stand-off clips may be extruded or cast from a desired material, such as stainless steel or steel which can then be galvanized, or may be extruded of aluminum or any other suitable material.
While the preferred embodiments of the invention have been described in detail, the invention is not limited to the specific embodiments described above, which should be considered as merely exemplary. For example, the stand-off clips can be used in conjunction with other types of roofs, such as composition roofs, as well as with other types of air-permeable strips 30 in order to prevent over-driving of the fasteners through the ridge vent. Further modifications and extensions of the present invention may be developed, and all such modifications are deemed to be within the scope of the present invention as defined by the appended claims.
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|U.S. Classification||52/199, 52/302.1, 454/365|
|International Classification||E04H12/28, F24F7/02, E04D13/17|
|Cooperative Classification||F24F7/02, E04D13/174|
|European Classification||F24F7/02, E04D13/17C|
|Nov 24, 2010||FPAY||Fee payment|
Year of fee payment: 4
|Nov 25, 2014||FPAY||Fee payment|
Year of fee payment: 8